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31. Quantitative Permittivity Measurements of Nanoliter Liquid Volumes in Microfluidic Channels to 40 GHz
Topic: Electromagnetics
Published: 12/1/2010
Authors: James C Booth, Nathan D Orloff, Jordi Mateu, Michael D Janezic, Matthew Rinehart, James A Beall
Abstract: We describe the design, fabrication, and evaluation of a new on-wafer measurement platform for the rapid, quantitative determination of the complex permittivity of nL fluid volumes over the frequency range from 10 MHz - 40 GHz. Our measurement platf ...

32. Thermal Noise and Noise Measurements a 2010 Update
Topic: Electromagnetics
Published: 10/1/2010
Authors: Anthony R Kerr, James Paul Randa
Abstract: 1. Introduction 2. Noise Temperature as a Measure of Noise Power 3. Available Noise Power from a Resistor 4. The Zero-Point Noise Term and the Minimum Noise of an Amplifier 5. Noise-Temperature Standards and Measurement of One-Port Noise Sources ...

Topic: Electromagnetics
Published: 7/30/2010
Authors: Thomas P Crowley, Xiaohai Cui
Abstract: We have evaluated the correction factor of a WR-15 (50 to 75 GHz) rectangular waveguide calorimeter using four different techniques. The four methods are in agreement. Our initial uncertainty analysis indicates that the technique with the lowest unce ...

Topic: Electromagnetics
Published: 7/30/2010
Authors: Dazhen Gu, Amanda Cox, Derek Anderson Houtz, David K Walker, James Paul Randa, Robert L Billinger
Abstract: We report the characterization of blackbody reflections as a part of the recent progress on the development of brightness standards for microwave remote sensing at National Institute of Standards and Technology (NIST).Three blackbody targets at varia ...

35. Impact of RF Interference between a Passive RFID System and a Frequency Hopping Communications System in the 900 MHz ISM Band
Topic: Electromagnetics
Published: 7/25/2010
Author: Michael R Souryal
Abstract: We present experimental measurements and analysis of RF interference between a passive RFID system and a generic frequency hopping communications system in the 902 928 MHz ISM radio band. Interference in both directions is considered, RFID to communi ...

36. Characterization of Tissue-Equivalent Materials for High-Frequency Applications (200 MHz to 20 GHz)
Series: Technical Note (NIST TN)
Report Number: 1554
Topic: Electromagnetics
Published: 7/1/2010
Authors: James R. Baker-Jarvis, Sung Kim, Luke Leschallinger, Justin Johnson, Brad Givot
Abstract: The purpose of this report is to summarize the characterization of a number of high-frequency solid, liquid, and semisolid tissue-equivalent materials, from 200 MHz to 20 GHz. Carbon black and liquid mixtures were studied, but were found to be uns ...

37. Behavior of {epsilon} (omega} and tan {delta} of a Class of Low-Loss Materials
Topic: Electromagnetics
Published: 6/18/2010
Authors: James R. Baker-Jarvis, Michael D Janezic, Billy F Riddle, Kim Sung
Abstract: In this project we study the behavior of the permittivity and loss tangent of a class of materials that exhibit relaxation. For relaxation response we show that the permittivity is a monotonically decreasing function of frequency. Also, for many lo ...

38. Simulator for Amplifier and Transistor Noise-Parameter Measurements
Topic: Electromagnetics
Published: 6/18/2010
Author: James Paul Randa
Abstract: This paper describes a simulation program that was developed to compare the uncertainties that would be expected with different measurement strategies for the noise parameters of connectorized amplifiers and of amplifiers or transistors on wafers. Bo ...

39. High-Frequency Dielectric Measurements: A Tutorial
Topic: Electromagnetics
Published: 4/1/2010
Authors: James R. Baker-Jarvis, Michael D Janezic, Donald C. DeGroot
Abstract: KNOWLEDGE of the response of materials to electromagnetic (EM) fields in the frequency range of radio frequency (RF) through terahertz (THz) is critical to numerous research projects and electronic product development activities. Electromagnetic wave ...

40. Broadband Characterization of Individual Platinum Nanowires
Topic: Electromagnetics
Published: 3/7/2010
Authors: Kichul Kim, Thomas M Wallis, Paul Rice, Chin J. Chiang, Atif (Atif) Imtiaz, Pavel Kabos, Dejan Filipovic
Abstract: Conductivity and contact resistance of 100 nm and 250 nm diameter platinum (Pt) nanowires (NWs) are investigated computationally and experimentally. Finite element method based full-wave modeling and circuit simulations are used in conjunction with m ...

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